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diff --git a/camel/camel-data-cache.h b/camel/camel-data-cache.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* camel-data-cache.h: Class for a Camel filesystem cache
+ *
+ * Authors: Michael Zucchi <notzed@ximian.com>
+ *
+ * Copyright (C) 2001 Ximian, Inc. (www.ximian.com)
+ *
+ * This program is free software; you can redistribute it and/or 
+ * modify it under the terms of version 2 of the GNU General Public 
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+
+#ifndef CAMEL_DATA_CACHE_H
+#define CAMEL_DATA_CACHE_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus }*/
+
+#include <glib.h>
+
+#include <camel/camel-stream.h>
+#include <camel/camel-exception.h>
+
+#define CAMEL_DATA_CACHE_TYPE     (camel_data_cache_get_type ())
+#define CAMEL_DATA_CACHE(obj)     (CAMEL_CHECK_CAST((obj), CAMEL_DATA_CACHE_TYPE, CamelFolder))
+#define CAMEL_DATA_CACHE_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_DATA_CACHE_TYPE, CamelFolderClass))
+#define CAMEL_IS_DATA_CACHE(o)    (CAMEL_CHECK_TYPE((o), CAMEL_DATA_CACHE_TYPE))
+
+typedef struct _CamelDataCache CamelDataCache;
+typedef struct _CamelDataCacheClass CamelDataCacheClass;
+
+struct _CamelDataCache {
+	CamelObject parent_object;
+
+	struct _CamelDataCachePrivate *priv;
+
+	char *path;
+	guint32 flags;
+
+	time_t expire_age;
+	time_t expire_access;
+};
+
+struct _CamelDataCacheClass {
+	CamelObjectClass parent_class;
+
+	/* None are virtual yet */
+#if 0
+	/* Virtual methods */
+	CamelStream *(*add)(CamelDataCache *cmc, const char *path, const char *key, CamelException *ex);
+	CamelStream *(*get)(CamelDataCache *cmc, const char *path, const char *key, CamelException *ex);
+	int (*close)(CamelDataCache *cmc, CamelStream *stream, CamelException *ex);
+	int (*remove)(CamelDataCache *cmc, const char *path, const char *key, CamelException *ex);
+
+	int (*clear)(CamelDataCache *cmc, const char *path, CamelException *ex);
+#endif
+};
+
+/* public methods */
+CamelDataCache *camel_data_cache_new(const char *path, guint32 flags, CamelException *ex);
+
+void camel_data_cache_set_expire_age(CamelDataCache *cache, time_t when);
+void camel_data_cache_set_expire_access(CamelDataCache *cdc, time_t when);
+
+int             camel_data_cache_rename(CamelDataCache *cache,
+					const char *old, const char *new, CamelException *ex);
+
+CamelStream    *camel_data_cache_add(CamelDataCache *cache,
+				     const char *path, const char *key, CamelException *ex);
+CamelStream    *camel_data_cache_get(CamelDataCache *cache,
+				     const char *path, const char *key, CamelException *ex);
+int             camel_data_cache_remove(CamelDataCache *cache,
+					const char *path, const char *key, CamelException *ex);
+
+int             camel_data_cache_clear(CamelDataCache *cache,
+				       const char *path, CamelException *ex);
+
+/* Standard Camel function */
+CamelType camel_data_cache_get_type (void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CAMEL_DATA_CACHE_H */